<template>
	<div class="rank" ref="rank">
		<scroll class="toplist" :data='topList' ref="topList">
			<ul>
				<li class="item" 
				    v-for="item of topList"
				    :key="item.id"
				    @click="selectItem(item)"
				    >
					<div class="icon">
						<img width="100" height="100" v-lazy="item.picUrl">
					</div>
					<ul class="songlist">
						<li class="song" v-for="(song,index) in item.songList">
							<span>{{index + 1}}</span>
							<span>{{song.songname}}-{{song.singername}}</span>
						</li>
					</ul>
				</li>
			</ul>
			<div class="loading-container" v-show="!topList.length">
				<loading></loading>
			</div>
		</scroll>
		<router-view></router-view>
	</div>
</template>

<script>
	import {getTopList} from 'api/rank'
	import {ERR_OK} from 'api/config'
	import Scroll from 'base/scroll/scroll'
	import Loading from 'base/loading/loading'
	import {playlistMixin} from 'common/js/mixin'
  import {mapMutations} from 'vuex'
export default {
   name: 'Rank',
   mixin: [playlistMixin],
   created() {
   	this._getTopList()
   },
   data() {
   	return {
   		topList: []
   	}
   },
   methods: {
   	handlePlaylist(playlist) {
   		const bottom = playlist.length ? '60px':''
   		this.$refs.rank.style.bottom = bottom
   		this.$refs.toplist.refresh()
   	},
   	selectItem(item) {
   		this.$router.push({
   			path: `/rank/${item.id}`
   		})
      this.setTopList(item)
   	},
   	_getTopList() {
   		getTopList().then((res) => {
   			if(res.code === ERR_OK){
   				this.topList = res.data.topList
   			}
   		})
   	},
    ...mapMutations({
      setTopList: 'SET_TOP_LIST'
    })
   },
   components: {
   	Scroll,
   	Loading
   }
}
</script>

<style scoped lang='stylus' rel="stylesheet/stylus">
  @import "~common/stylus/variable"
  @import "~common/stylus/mixin"

  .rank
    position: fixed
    width: 100%
    top: 88px
    bottom: 0
    .toplist
      height: 100%
      overflow: hidden
      .item
        display: flex
        margin: 0 20px
        padding-top: 20px
        height: 100px
        &:last-child
          padding-bottom: 20px
        .icon
          flex: 0 0 100px
          width: 100px
          height: 100px
        .songlist
          flex: 1
          display: flex
          flex-direction: column
          justify-content: center
          padding: 0 20px
          height: 100px
          overflow: hidden
          background: $color-highlight-background
          color: $color-text-d
          font-size: $font-size-small
          .song
            no-wrap()
            line-height: 26px
      .loading-container
        position: absolute
        width: 100%
        top: 50%
        transform: translateY(-50%)
</style>
